急性重型胆管炎的主要病因
A.饮食不节
B.高脂血症
C.胆管梗阻、细菌感染
D.胆管异常
E.免疫功能低下
参考答案:C
“Are you satisfied with his answer?” “Not at all. It couldn’t have been ____.”
A.better
B.worse
C.more
D.less
菜刀可以托运,不可以携带。()